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| author | Tero Kristo <t-kristo@ti.com> | 2020-03-12 12:58:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-29 17:31:09 +0300 |
| commit | ba54ddabc0135481eff2f380d424a2228d347008 (patch) | |
| tree | 30cfcfc387aa930f4101aafceac437bf40a281a2 /drivers/watchdog | |
| parent | d42f91ba29e3d8b76ac7136751e0e88ddca025ed (diff) | |
| download | linux-ba54ddabc0135481eff2f380d424a2228d347008.tar.xz | |
watchdog: reset last_hw_keepalive time at start
[ Upstream commit 982bb70517aef2225bad1d802887b733db492cc0 ]
Currently the watchdog core does not initialize the last_hw_keepalive
time during watchdog startup. This will cause the watchdog to be pinged
immediately if enough time has passed from the system boot-up time, and
some types of watchdogs like K3 RTI does not like this.
To avoid the issue, setup the last_hw_keepalive time during watchdog
startup.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200302200426.6492-3-t-kristo@ti.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/watchdog_dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index e64aa88e99da..10b2090f3e5e 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -264,6 +264,7 @@ static int watchdog_start(struct watchdog_device *wdd) if (err == 0) { set_bit(WDOG_ACTIVE, &wdd->status); wd_data->last_keepalive = started_at; + wd_data->last_hw_keepalive = started_at; watchdog_update_worker(wdd); } |